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(11) | EP 4 266 337 A3 |
(12) | EUROPEAN PATENT APPLICATION |
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(54) | HYBRID MINIATURE CIRCUIT BREAKER |
(57) A hybrid circuit breaker includes a primary trip/isolation relay component and a
primary trip/isolation relay component driver coupled to the primary trip/isolation
relay component and structured to interrupt current from flowing to the load in an
event of fault; a sensing mechanism structured to sense at least current, voltage,
and power flowing to the load; a metrology component coupled to the sensing mechanism
and structured to monitor and measure at least the current, voltage and power; a controller
structured to detect the event of fault based on data received from the sensing mechanism
and the metrology component and communicate with a user device; and a hybrid secondary
switching device coupled to the controller and the primary trip/isolation relay component,
the hybrid secondary switch device including secondary contacts, a miniaturized electromechanical
relay and a power electronics circuit connected in parallel with the miniaturized
electromechanical relay.
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